Automatic Door Bottom Mill Finish Insert Size 3/8 in Flange Height 1 3/8 in Width 9/16 in Length 36 in Projection 3/4 in Insert Material PemkoPrene Housing Material Aluminum Color Silver Performance Heavy Duty Insert Color Black Flange Material Aluminum Flange Thickness 9/16 in Drop Bar Material PemkePrene Hardware Included For Use With 36 in Wide Doors Standards ASTM E 1408-91 ASTM E 90-97 ASTM-E283 BHMA Certified Meets NFPA 105-99 UBC7.2 UL 1784-01 Tested UL10B UL10C